WO2003025317A1

WO2003025317A1 - Card-operated lock

Info

Publication number: WO2003025317A1
Application number: PCT/EP2002/010109
Authority: WO
Inventors: Armin Eisermann
Original assignee: Keiden Sango Co., Ltd.
Priority date: 2001-09-14
Filing date: 2002-09-10
Publication date: 2003-03-27
Also published as: JP2005503505A

Abstract

The invention relates to a card-operated lock comprising a bolt (10) that is located in a lock housing. The bolt is retained by one or more tumblers so that it cannot be displaced. Said tumblers are displaced into a release position upon insertion of the correct key card (5), in such a way that when the key card (5) is inserted, the bolt (10) is carried along into a displacement position by a driver section (32) of the key card, which co-operates with a driver shoulder (34) of the bolt (10). According to the invention, to optimise the operation of the card-operated lock, the driver connection is suspended if an excess of force is exerted.

Description

card lock

The invention relates to a card lock with a slide arranged in a lock housing, which is kept locked by one or more tumblers against publishers, which tumblers shift into a release position when the correct key card is inserted, so that the slide moves from a driving section when the key card is inserted Key card, which cooperates with a driving shoulder of the slider, is dragged into a ner storage position.

With such card locks known on the market, the key cards are coded in such a way that after being inserted into the card lock, they have shifted the tumblers in such a way that the slide can be displaced over the driving section of the key card. In the slider position advanced by means of the key card, the slider displaced against spring force is held in position with the key card.

The object of the invention is to optimize a card lock of the type in question with regard to its structure.

This object is initially and essentially achieved with a card lock with the features of claim 1, which is based on the fact that the entrainment connection is canceled when the force is exceeded.

The subject matter of the further claims are explained below in relation to the subject matter of claim 1, but may also be of importance in their independent formulation. As a result of such a configuration, a card lock of the type in question is specified, the function of which is retained even when an incorrect card key is used. In detail, the procedure is such that after the wrong card key has been inserted into the card lock and when the user tries to subsequently move the slide using the key card, the entrainment connection between the card and the slide is released when a certain force is exceeded. This can be achieved, for example, by a positive or non-positive connection. However, it is always guaranteed that the card lock itself does not experience a function-changing hazard. One way of realizing the inventive idea is that the card-side driving section is connected to the key card via a predetermined breaking point. If the key card does not belong to a card lock and is nevertheless inserted and a pushing-in force is prohibited, this leads to the card-side driving section being separated at the predetermined breaking parts. The key card can therefore not exert any further insertion force on the slide, so that the lock mechanism of the card lock remains protected. An advantageous development according to the invention is to be seen in the fact that the card-side mimic section is formed by a projection which is assigned to the broad side or the narrow longitudinal side and is supported on a shoulder of the slide. It is possible to assign the protrusion to the key card using the same material or to attach it later. In order to be able to give the card-side driver section an additional function, the card-side driver section is a magnet which interacts with a magnet of the slide, which is designed in particular as a guard locking device.

The card lock itself can be constructed in such a way that magnetic locks are assigned to the broad side of the slide. These are in turn shifted from broadside magnetizations of the key card to a release position to be able to take the slide with the key card. In addition, at least one supplementary tumbler assigned to the narrow side of the slide is provided, which can be shifted by a narrow side magnetization of the key card. The narrow side magnetization of the key card can also serve to form the driving section of the key card. Another possibility of designing the driver-side driving section is to design it as a spring element which interacts with a recess in the key card. If the force exerted by the key card exceeds a predetermined value, the spring element deflects by leaving the recess in the key card. Then a version according to the invention is characterized by a spring element which engages on a shoulder of the key card and which is assigned to the housing and holds the slide in its key card-displaced position. The spring element does not act on the slider as in known solutions, but on the key card itself.

The aforementioned idea of the invention is optimized in that the holding element enters into a holding connection with the key card, which is canceled when the force is exceeded. It is realized in this way that the removal of the excess force becomes effective not only when the key card is inserted, but also when the key card is withdrawn. After the key card has been inserted and the slide has been moved forward, the holding element is in operative connection or holding connection with the key card. As a result, the restoring force acting on the slide cannot become effective. When the key card is pulled off, the holding connection is then released when the force is exceeded, whereupon the slide moves back under spring load. This means that the force of the retaining connection is greater than the spring load acting on the slide. In a version according to the invention it can be provided that the holding element interacts with the driving section. This accordingly fulfills a double function: on the one hand, it serves to attack the key insert on the slide and, on the other hand, to implement the holding connection with the holding element in the shift position. In the latter case, the configuration lends itself in which the holding element is a spring element which is fixedly connected to the lock housing. Optionally, the spring element can interact with a recess in the key card. Furthermore, there is the possibility that the spring element is a clip which surrounds the card, in particular at the card edge. The edge of the card is grasped by means of the clip in the forward position of the slide by means of the key card. The clamp force determines the force of the holding connection with the key card. It is advisable to equip the key card with a broad-side profiling, in particular a recess, with which the clip interacts in the displacement position. For example, the broadside profiling can be formed by a dent, beaded edge or hole. The flanged edge is recommended if the key card has multiple layers and the one layer comprises the opposite layer with a flanged edge. This forms an edge which interacts with the clip. Then there is the possibility that the holding element forms a catch interacting with a catch tongue of the key card. When inserting the key card and dragging the slider into the displacement position, the latching tongue initially yields in order to form a latch in the shifting position with the holding element. The relevant locking force can be canceled by subtracting the key card after the holding connection has exceeded the force. In detail, the key card is designed so that the latching tongue is assigned to the front edge of the key card on the insertion side. The latching tongue can be made of the same material as the key card. This can be the case if the key card is made of plastic. A concealment component can also be provided by an additional locking combination for the positioning of the latching tongue or the Rest should be provided. The locking process can only be carried out when the locking tongue is in the intended position. The key card for a card lock as described above is characterized in that it has a profile, in particular on the broad side of the key, which interacts with a holding element of the card lock. Since the key card in turn fixes the slide in the shift position, both the key card and the slide are thus held by the holding element. However, the profiling can also be a latching tongue assigned in particular to the front edge on the insertion side.

In order to include existing components for fixing the slide in its displacement position, the invention proposes that the dent or the hole cooperate with a corresponding, forming the holding element, in particular in the form of a hole or a dent of a wall of the slot, which through Spring force is pressed against the broad side of the card. The wall of the insertion shaft can be the anchor plate, for example. At its inward end, for example, it can form a conical shape in the form of a protruding dent. The key card has a hole in the appropriate place. In the forward position of the slide by means of the key card, the hole is aligned with the shape, as a result of which a locking connection is made. The spring force directed at the wall or the anchor plate is dimensioned such that the latching connection is stronger than the retraction force acting on the slide. It is advisable that the spring force acting on the wall of the insertion shaft is formed by a leaf spring. This could then form a corresponding design or hole at its inward end, which engages in a snap connection to the key card. Here too it is realized that the latching force is greater than the retraction force acting on the slide. The dent, be it the one on the key card, wall of the slot or on the leaf spring, can be designed in the form of an embossing. A particularly advantageous embodiment of the card lock is further characterized in that the holding element is a spring tongue formed by a guide plate fixed to the housing, which engages behind a step of the key card. Here too, it is again the case that existing components are used to lock the key card in front of the slide in the shifted position. It is thus possible for the spring tongue to be an extension of the guide plate made of the same material. This extension can already be taken into account, for example, when punching out the guide plate, which is then to be brought into the appropriate orientation. In detail, the key card can be constructed in such a way that it is designed in three layers, the middle layer, which has the magnetizations, in each case being surrounded by a metal layer, one of the metal layers forming an expression. This in turn forms the step for reaching behind by the spring tongue in the position of the slide which is advanced by means of the key card.

Several exemplary embodiments of the invention are explained below with reference to the drawings. It shows

1 partly in view, partly in longitudinal section, a card lock designed according to the invention with an inserted key card, relating to the first embodiment,

2 is a perspective view of the key card,

3 in a schematic representation, the key card inserted into the card lock when it is moved forward while taking the slide with it, 4 shows a modified embodiment of the key card, the driver section on the card side being a magnet, relating to the second embodiment,

5 shows a schematic representation of this key card in its inserted position,

6 shows the third embodiment, a housing-side spring element acting on the driving shoulder of the key card,

7 shows a further modified embodiment of a key card in a perspective view with a recess provided on a narrow longitudinal edge,

8 is a perspective view of a key card consisting of several layers, in which a flanged edge is formed by reaching around a layer,

9 shows a schematic representation of the fourth embodiment of a card lock with an inserted one that has the flanged edge

Key card,

10 shows the section along the line X-X in FIG. 9,

11 shows a representation corresponding to FIG. 10, but showing the fifth embodiment,

12 shows a longitudinal section like FIG. 10, relating to the sixth embodiment, 13 shows a partial representation of the card lock according to the seventh embodiment during the insertion of the key card, which forms a latching tongue on its front edge for cooperation with a holding element of the lock housing,

14 the follow-up view of FIG. 13, the key card being fully inserted and the latching tongue encompassing the holding element,

15 also shows a partial illustration of the card lock according to the eighth embodiment during the insertion of the key card,

FIG. 16 shows the follow-up view of FIG. 15 in the position of the slider displaced from the key card, the locking tongue of the key card on the end edge engaging behind a holding element, while further holding elements have entered recesses on the end of the key card,

17 a representation comparable to FIG. 1, but relating to the ninth embodiment, namely in the position of the slide caused by the key card,

Fig. 18 shows a detail of Fig. 17 in a greatly enlarged representation at the level of the locking connection between the key card and the wall of the

insertion shaft,

19 shows the tenth embodiment of a card lock with associated key card, with the guide plate of the circular the card lock is looked at according to the withdrawal position of the key card and the correspondingly locked card lock,

20 is an end view of the slide illustrated on an enlarged scale with a view of the slotted driving shoulder,

FIG. 21 shows a representation comparable to FIG. 19, but with the slide and

22 shows a greatly enlarged illustration of the section along the line XXπ-XXII in FIG. 21.

The card lock 1, which can be assigned, for example, to a hotel room door (not illustrated), has a rectangular lock case 2 which can be fixed on the outside of the door and which has an external turning handle 3 at one end. With their help, a latch (not illustrated) of a mortise lock installed in the door can be withdrawn. In contrast, the latch can always be withdrawn from the inside of the door by means of an internal turning handle (not shown).

An insertion slot 4 for a key 5 extends from the end of the lock case 2 opposite the external turning handle 3. With regard to the same, it is a key card that is magnetized in some areas and has a roughly rectangular outline.

The broadside magnetizations of the key card 5 are denoted by the number 17. In its interior, the lock case 2 accommodates a lock housing 6, which is composed of a base part 7, a middle part 8 and a cover part 9. Aluminum is used for the middle part 8, while the bottom part

7 and the cover part 9 are made of plastic. Between the cover part 9 and the middle part 8 is also made of plastic, plate-shaped slide 10, which has a wide surface on the middle part

8 is present. The opposite guide surface for the slide 10 forms a locking plate 11 made of brass. This is immovable in the cover part

9 inserted. Holes 12 in the locking plate 11 are aligned with through bores 13 of the slide 10 when the key card 5 is not inserted.

Magnetic tumbler pins 14 lie in these bores 13. It is not necessary to provide a tumbler pin 14 in each bore 13, since the number, the position and the polarity of the tumbler pins 14 depend on the respective opening code combination of the card lock 1.

On the other side of the locking plate 11 there is a baffle 15, also made of brass, which in turn rests on an anchor plate 16. The latter is held in position by compression springs, not illustrated, which are supported on the cover part 9. In contrast to the other components, the anchor plate 16 consists of ferromagnetic material. The armature plate 16 thus attracts the magnetic tumbler pins 14, which consequently engage in the holes 12 in the locking plate 11. Accordingly, in the engagement position of the magnetic tumbler pins 14, the slide 10 cannot be moved out of its basic position.

Both the anchor plate 16 and the baffle 15 leave the insertion shaft 4 between them. The front transverse edges of the baffle 15 and the anchor plate 16 are angled in opposite directions and form a gusset for the key card 5 to be inserted. A tension spring 18 serving as a return spring is fixed at one end to a cross pin 19 of the central part 8. The other end of the tension spring 18 engages on a projection 20 of the slide 10 passing through a slot of the central part 8, as a result of which the latter is loaded into its basic position. The projection 20 is preceded by two bevelled lugs 21, 22 of the slider 10 which, like the projection 20, extend through the middle part 8. The bevels 21 ', 22' of the lugs 21, 22 are designed approximately in the same direction. They engage on obliquely angled tabs 23, 24 of a rigid arm 25 which can be displaced transversely to the slide movement and which has a spring zone 25 'in the region of the key card insertion end.

The latter is clamped in the corresponding area of the lock housing 6. The end of the arm 25 opposite the fastening end continues into a bent portion 26, which is followed by a fork-shaped end 27. This engages in an annular groove 28 of an internally toothed coupling sleeve 29. In the closed position of the card lock 1 there is no rotary connection between the coupling sleeve 29 and a toothed pinion 30 arranged coaxially to it. Since this carrier is the external turning handle 3, only the latter can be turned without causing the coupling sleeve 29 to be carried along. The pusher mandrel 31 which is in meshing engagement with the coupling sleeve 29 is therefore not taken along.

As illustrated in FIGS. 2 and 3, the key card 5 has a driving section 32 on its narrow long side 5 '. This is connected to the key card 5 via a predetermined breaking point 33. A driving shoulder 34 of the slide 10 interacts with the driving section 32. The latter extends transversely to the direction of displacement of the slide 10. As indicated by dash-dotted lines in FIG. 2, the driving section 35 can also start from the one broad area of the key card 5. Then a driving shoulder would have to be provided at the appropriate point of the slide 10.

The following mode of action occurs:

In order to be able to actuate the card lock 1 from the outside of the door by means of the external turning handle 3, it is necessary to insert the correspondingly coded key card 5 into the key card insertion slot 4. In this case, the anchor plate 16 acted upon by compression springs is displaced in the transverse direction. In the fully inserted position, the key card with its driving section 32 comes in front of the driving shoulder 34 of the slider. In this position, the magnetic tumbler pins 14 are displaced so that they have left the holes 12 in the locking plate 11. The key card 5 can now be advanced, the slider 10 being dragged against the force of the tension spring 18. Along with the forward displacement of the slide 10, the arm 25 is acted upon by its nose 21, which pivots about its spring zone 25 ', see FIG. 1. Since the free, forked end 27 of the arm 25 is in engagement with the coupling sleeve 29, it is shifted in such a way that it then engages over the pinion 30.

In this way, a rotary connection to the pusher mandrel 31 is brought about, so that actuation of the external rotary handle 3 leads to a displacement of a latch coupled to the pusher mandrel 31.

If a key card 5 not belonging to the card lock is inserted, the tumbler pins 14 are not shifted into the release position. If an attempt is nevertheless made to move the slide by means of the key card 5, a force is exceeded with regard to the driving connection. This leads to the card-side driving section 32 on the Breakage point 33 tears off. Card 5 can still be pushed forward, but does not have a destructive function on the locksmith. The functionality of the card lock 1 is therefore retained.

The second embodiment according to FIGS. 4 and 5 differs from the first embodiment in that two driver-side driving sections 32 and 36 are provided. The driving section 32 corresponds to that shown in FIGS. 2 and 3. It cooperates with a corresponding driving shoulder 34 of the slide 10. The other driver section 36 on the card side is located on one broad side of the card near the other narrow long side 5 "of the key card 5. This driver section 36 is a magnet which interacts with a magnet of the slide 10 designed as a tumbler 37. For this purpose, the slide 10 has in it A drive hole 39 is located opposite the driving shoulder 34 opposite the edge 38. A plate 40 made of ferromagnetic material is assigned to the hole 39. An opening 41 of the lock housing 6 is aligned with the hole 39. If no key card 5 is inserted, the plate 40 attracts the magnet 37 or supplementary locking device so that part of its length lies in the bore 39 and also in the opening 41.

If the prescribed key card 5 is now inserted, both the tumbler pins 14 are classified by the broadside magnetizations 17 and the supplementary tumbler 37, which completely leaves the bore 39. The slider 10 is thus no longer locked, so that a forward displacement of the key card 5 leads to the slider 10 being carried along. In this version, too, it applies that the predetermined breaking points between the driving sections 32 and the key card 5 come into effect when a predetermined force is exceeded. A key card 5, which forms the driving section 32, but does not have a magnetic driving section 36, cannot open the card lock, since the magnetic supplementary tumbler 37 effectively prevents this.

The key card 5 of the third embodiment illustrated in FIG. 6 corresponds to the key card shown in FIGS. 4 and 5. In a departure from this, the lock housing 6 now has a spring element 42 with a terminal bend which projects into the insertion path of the key card 5. This is composed of two angular sections 43, 44. In order to allow the spring element 42 to be deflected, the lock housing 6 has an escape space 45. If the prescribed key card 5 is inserted, the tumblers being arranged, the slide 10 can be advanced via the driving sections 32, 36. In the forward position, the driving section 32 then runs over the sections 43, 44 of the spring element 42 which are at an angle to one another, in which case the section 43 in cooperation with the driving section 32 prevents the slider 10 from being moved back. So the latter stops. This means that the force exerted by the spring element 42 is greater than the retraction force of the tension spring 18. Only when the key card is withdrawn is the spring element 42 shifted into an evasive position by the driving section 32, so that the tension spring 18 then transfers the slide 10 into its initial position.

A key card 5 is illustrated in FIG. 7, which forms a triangular recess 46 on its narrow long side 5 '. This can cooperate with a sliding shoulder on the slide, which in turn is also a spring element. In this version, too, the driving connection between the key card 5 and the slide 10 is broken when a predetermined force is exceeded. A modified design could also look such that the spring element 42 in question is provided on the lock housing and is immersed in the recess 46 in the advanced slide position. Then the slide is held in the forward position. In addition, however, a further driving section would then have to be provided on the key card, which driving section interacts with a corresponding driving shoulder of the slider. Then the spring element holds the key card and this over the driving connection the slide. When the key card is withdrawn from the slot 4 of the card lock, the operative connection between the spring element and the recess 46 is then released, so that the slide is then moved back into the starting position via the tension spring 18.

The fourth embodiment of the card lock is shown in FIGS. 8 to 10. The key card 5 now has a multi-layer design. The one outer layer 47, with a flanged edge 48, comprises a further layer 49 arranged parallel to the layer 47. A wide-side profiling is formed by the flanged edge 48, specifically with a shoulder 50 there.

The slide 10 guided by the lock housing 6 has a driving shoulder 51 on its end facing away from the insertion side, which protrudes into the insertion path of the key card 5. On both sides of the driving shoulder 51 arranged in the central longitudinal axis of the lock there are holding elements 52 on the lock housing side which serve to form a holding connection with the key card 5. With regard to the holding element 52, it is a spring element that is firmly connected to the lock housing 6. According to FIGS. 9 and 10, there is one piece with the lock housing. The spring element or holding element 52 in question is designed in the form of a clip which surrounds the card, in particular at the card edge. That of the adjacent broad area of the slide 10 facing clip section 53 lies in the inserted end position of the key card 5 on the layer 47, while the opposite clip section 54 engages behind the flanged edge 48 with a projection 55. The projection 55 forms a control bevel 56 which takes effect when the key card 5 is withdrawn. When the key card 5 is inserted, a run-up slope 57 of the projection 55 comes into effect.

In the card insertion position and thereby in the displacement position of the slider 10, the holding elements 52 enter into a holding connection with the flanged edge 48 such that their force is greater than the restoring force of the tension spring 18 acting on the slider 10. This means that after the key card has been inserted 5 this remains with the slide 10 in the intended shift position. After the card lock has been closed and the key card 5 has been pulled out, there is a force transmission which removes the holding connection, after which the tension spring 18 then transfers the slide 10 to the starting position.

According to the fifth embodiment of the card lock illustrated in FIG. 11, the same components are provided with the same reference numbers. Deviatingly, the key card 5 made of plastic material now has inward dents 58 located opposite one another on the broad sides of the key. These therefore form the broadside profiling which interacts with the clamp-shaped holding elements 52. In this embodiment, the clamp sections 53, 54 have mutually directed, opposite, cone-shaped projections 59 which, in the shifted position of the slide 10, together with the key card 5, engage in the dents 58 and establish the holding connection to the key card. As with the fourth expansion, management form when force is exceeded, i.e. when the key card 5 is removed.

According to the sixth embodiment of FIG. 12 bear same ^"before reference numerals as in the previous two embodiments, the same components. Notwithstanding the broad side profiling of the key card is now formed 5 of a hole 60. The configuration of the clip-like holding element 52 largely corresponds to that of FIG. 11 The conical projections 59 are now designed such that they touch one another, even in the displaced position of the slide 10 by means of the key card 5.

According to the seventh embodiment according to FIGS. 13 and 14, the holding element 61 forms a catch cooperating with a catch tongue 62 of the key card 5. The latching tongue 62 is located on the insertion-side end edge of the key card 5 made of plastic material. The latching tongue 62 projects opposite the end edge of the key card 5. There, the latching tongue 62 forms a control slope 63. The latching tongue 62, which is designed like a latching hook, partially overlaps a front edge-side recess 64 of the key card 5. The recess 64 is larger than the outline of the holding element 61, so that in the advanced slide position according to FIG. 14, the holding element 61, after it has actuated the latching tongue 62, into the Recess 64 can intervene. The holding bevel 65, which forms an acute angle with the control bevel 63, runs inclined to the direction of displacement of the key card 5, so that in the shifted position and the holding connection that has occurred, the latching tongue 62 to the holding element 61 initially resiliently dents the latching tongue 62 when the holding force is exceeded, in order to remove the key card 5 to allow and accordingly also the displacement of the slide. 13 and 14 illustrate that the holding elements 61 can also assume dash-dotted positions on the lock housing 6. Depending on the selected position, the latching tongue 62 would then have to be positioned on the front edge. It is also possible to provide more than one latching tongue and a corresponding number of holding elements.

The eighth embodiment illustrated in FIGS. 15 and 16 shows a modification to the configuration described above. In addition to the latching tongue 62, there are further cutouts 64 on the relevant insertion edge of the key card 5. These are assigned holding elements 61 of the lock housing 6. While the second holding element 61, seen from the left, interacts with the associated latching tongue 62, namely in the forward position of the slide by the key card, the further holding elements 61 plunge into the additional cutouts 64. If these cutouts are missing, the key card could not be fully inserted and the slide could therefore be advanced. The lock could not be moved to the open position. An additional obfuscation component can be achieved in this way. Only the key card, which forms the latching tongue 62 and the cutouts 64 at the predetermined location, can be inserted. This also applies to the positioning of the lock elements 61 on the lock case side.

With regard to the ninth embodiment shown in FIGS. 17 and 18, it is a configuration close to the first embodiment. The same reference numbers are assigned to the same components. The front edge of the key card 5 on the insertion side engages on a driving shoulder 51 of the slide 10. Because of this, a displacement of the slide against the force of the tension spring 18 is possible. The forward position of the slide 10 is secured by a snap connection. For this purpose, the wall of the Insert slot 4 is a shape in the form of a dent representing the holding element 66. In the present case, the wall of the insertion shaft 4 is formed by the anchor plate 16. Seen in cross section, the dent 66 has a conical shape. This dimpled shape 66 dips into a hole 67 at the front end of the key card 5. Two such holes 67 can be provided on the key card 5. Accordingly, the wall or the anchor plate 16 also forms two dent-shaped features 66. The dimpled shape 66 is displaced into the hole 67 by the force of a leaf spring 68 which extends longitudinally in the lock housing. This is supported with its end sections 68 'on the cover part 9, while the central region of the leaf spring 68 the anchor plate 16 in the direction of the slide 10 and thus also shifted to the key card 5. Appropriate dimensioning of the force of the leaf spring 68 and the design of the latching connection between the anchor plate 16 and the key card 66 ensure that the tension spring 18 is unable to move the slide back from its forward position.

The shifting back of the slide 10 rather requires the willful deduction of the key card 5, the latching connection between the dent-shaped expression 66 and the hole 67 being canceled with the accompanying shifting of the anchor plate 16 against the force of the leaf spring 68. As soon as the holding force is released and the Key card 5 is withdrawn, the tension spring 18 can be effective, which in turn returns the slider 10 to the starting position.

It can be seen from the above that no additional components have to be provided in order to hold the slide in its forward position. The aforementioned idea could also be implemented in such a way that the anchor plate is shortened somewhat at its inward end. The leaf spring 68 could then have a corresponding dimpled shape at its inward end, which cooperates with a hole in the key card.

It would be possible to provide the dimpled shape on the key card and the hole in the anchor plate 16 or in the leaf spring 68.

According to the tenth embodiment illustrated in FIGS. 19 to 22, the card lock 1 has a lock housing 2 'which is circular in plan and in which the slide 10 is guided in a diametrical orientation. At its inward end, the slide 10 forms the driving shoulder 51, which has a central through slot 69. Furthermore, a blind bore 70 extends from the inward end face of the slide 10 for the incorporation of a compression spring 71, by means of which the slide 10 is displaced in the direction of its starting position according to FIG. 19, including a pot sleeve 71 '.

One wide surface of the slide 10 is flanked by the locking plate 11. The guide plate 15 lies flat on this. The anchor plate, from which the tumbler pins (not shown) are drawn into the corresponding holes in the locking plate, runs parallel to the guide plate 15.

When the key card 5 is inserted, it passes into the area between the guide plate 15 and the anchor plate 16.

At its end opposite the insertion shaft, the guide plate 15 carries a spring tongue which forms the holding element 72. She is there, in particular 22, a material-uniform extension of the guide plate 15. The end of the guide plate 15 opposite the plug-in end of the insertion shaft, that is to say the spring tongue or holding element 72 there, is bent over in a hairpin shape. The spring section 73 running parallel to the guide plate 15 at a distance from this is bent at the end in the direction of the guide plate and forms a latching projection 74, which merges into a control section 75 running obliquely to the guide plate plane.

As can be seen in particular from the figures, the width of the spring tongue 72 is smaller than the width of the through-slot 69. Accordingly, the slide 10 can be moved forward without hindrance by means of the key card 5.

In detail, the key card 5 used in this embodiment is configured in three layers. It is composed of a middle, thicker layer 76 and the two metal layers 77 and 78 running towards it on the broad surface, which surround the middle layer 76. This looks so that the one metal layer 77 with a flanged edge 77 'encompasses the front edge of the middle layer 76 and slightly overlaps the edge region of the other metal layer 78, see FIG. 22. The middle layer 76 has the magnetizations which the tumbler pins 14 shift.

Near the insert-side edge of the key card, the metal layer 78 forms an embossment 79, the width of which corresponds to the width of the spring tongue 72. This characteristic 79 forms a step 80 which, when the slide 10 is advanced by means of the key card 5, passes over the latching projection 74 in such a way that it then lies in front of the step 80 and locks the key card 5 together with the slide 10 in the forward position. The latching force exerted by the spring tongue 72 is greater than the restoring force of the compression spring 71. Elimination of the slide 10 therefore requires a willful removal of the key card 5 while removing the aforementioned locking connection.

22 that the stamping 79 runs parallel to the broad surface of the metal layer 78. However, it is also possible to design the shape in a wedge-like manner, as indicated by dash-dotted lines in FIG. 22.

All of the features disclosed are (in themselves) essential to the invention. The disclosure content of the associated / attached priority documents (copy of the prior application) is hereby also included in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application.

Claims

EXPECTATIONS

1. Card lock with a slide (10) arranged in a lock housing (6), which is locked against displacement by one or more tumblers (14), which tumblers (14) shift into a release position when the correct key card (5) is inserted , so that when the key card (5) is inserted, the slide (10) is dragged into a displacement position by a driving section (32) of the key card, which cooperates with a driving shoulder (34) of the slide (10), characterized in that the connection is removed when the force is exceeded.

2. Card lock according to claim 1 or in particular according thereto, characterized in that the card-side driving section (32, 36) is connected to the key card (5) via a predetermined breaking point (33).

3. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the card-side driving section (32, 36) is formed by a projection which is associated with the broad side or the narrow longitudinal side (5 ', 5 ") a driving shoulder (34) of the slide (10) is supported.

4. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the card-side driving section (36) is a magnet which interacts with a magnet of the slide (10) which is designed in particular as a tumbler (37).

5. Card lock according to one or more of the preceding claims or in particular according thereto, characterized by the broad side of the Magnetic tumblers (14) assigned to the slide (10), which can be displaced by broadside magnetizations (17) of the key card (5), and at least one supplementary tumbler (37) assigned to the narrow side of the slide (10), which is characterized by a narrow side magnetization of the key card (5 ) is relocatable.

6. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the slide-side driving section is a spring element which cooperates with a recess (46) in the key card (5).

7. Card lock according to one or more of the preceding claims or in particular according thereto, characterized by a spring element (42) engaging on a shoulder (32) of the key card (5), which is assigned to the lock housing (6) and the slide (10) holds in its key card relocated position.

8. Card lock with a slide (10) arranged in a lock housing (6), which is locked against displacement by one or more tumblers (14), which tumblers are correct when inserted

Shift the key card (5) into a release position so that when the key card (5) is inserted, the slide (10) is dragged into a displacement position and there by a driving section of the key card, which cooperates with a driving shoulder (51) of the slide (10) of a holding element (42, which cooperates with the key card (5),

52, 61, 66, 72), characterized in that the holding element (42, 52, 61, 66, 72) enters into a holding connection with the key card (5), which is canceled when the force is exceeded.

9. Card lock according to claim 8 or in particular according thereto, characterized in that the holding element (42) cooperates with the driving section (32).

10. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the holding element is a spring element (42) which is fixedly connected to the lock housing (6).

11. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the spring element

(42) cooperates with a recess (46) in the key card (5).

12. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the spring element (52) comprises a key card (5), in particular at the card edge

Bracket is.

13. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the clip (52) cooperates with a broadside profiling, in particular a depression, of the card (5).

14. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the broad side profile is formed by a dent (58), flanged edge (48) or hole (60).

15. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the holding element (61) forms a catch cooperating with a catch tongue (62).

16. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the latching tongue (62) is assigned to the front edge of the key card (5) on the insertion side.

17. Card lock according to one or more of the preceding claims or in particular according thereto, characterized by an additional locking combination for the positioning of the latching tongue (62) or the latch.

18. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the dent or the hole (67) with an expression corresponding thereto, the retaining element (66) forming, in particular in the form of a hole or a dent (66 ) a wall (16) of the slot (4) cooperates, which is pressed by spring force against the broad side of the card.

19. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the dent (66) is an embossing.

20. Card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the holding element (72) is a spring tongue formed by a guide plate (15) fixed to the housing which engages behind a step (80) of the key card (5).

21. Card lock according to claim 21, characterized in that the spring tongue (72) is a material-like extension of the guide plate (15).

22. Key card for a card lock according to one or more of the preceding claims or in particular according thereto, characterized in that the key card (5) has a profile (48, 58, 60), in particular on the key broadside, with a holding element (52) of the card - Castle (1) interacts.

23. Key card according to claim 22 or in particular according thereto, characterized in that the profiling is a latching tongue (62) assigned in particular to the front edge on the insertion side.

24. Key card according to claim 22 or in particular according thereto, characterized in that the key card (5) is configured in three layers, the middle layer (76) having the magnetizations being in each case surrounded by a metal layer (77, 78), one of the metal layers (78) forms an expression (79).